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27621130 = 257138903
BaseRepresentation
bin110100101011…
…1011100001010
31220222022001211
41221113130022
524032334010
62424003334
7453530035
oct151273412
956868054
1027621130
1114656189
12930054a
135951284
14395001c
15265908a
hex1a5770a

27621130 has 16 divisors (see below), whose sum is σ = 50419584. Its totient is φ = 10892560.

The previous prime is 27621119. The next prime is 27621157. The reversal of 27621130 is 3112672.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18742 + ... + 20161.

It is an arithmetic number, because the mean of its divisors is an integer number (3151224).

Almost surely, 227621130 is an apocalyptic number.

27621130 is a deficient number, since it is larger than the sum of its proper divisors (22798454).

27621130 is a wasteful number, since it uses less digits than its factorization.

27621130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38981.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 27621130 is about 5255.5808432561. The cubic root of 27621130 is about 302.2830628206.

The spelling of 27621130 in words is "twenty-seven million, six hundred twenty-one thousand, one hundred thirty".

Divisors: 1 2 5 10 71 142 355 710 38903 77806 194515 389030 2762113 5524226 13810565 27621130